<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>案例</title>
    <style>
        .qaq{
            width: 100px;
            height: 100px;
            background-color:red;

        }
        .qwq{
            width: 100px;
            height: 100px;
            background-color:seagreen;

        }
        .qeq{
            color: sandybrown;
        }
        .qtq{
            font-size: 40px;
        }
        body{
            font-size: 20px;
        }


    </style>
</head>
<body>
    <h1>李钟硕</h1>
    <p>李钟硕</p>
    <p>李钟硕</p>
    <p>李钟硕</p>
    <div class="qaq"></div>
    <div class="qwq"></div>
    <div class="qaq"></div>
    <div class="qeq qtq">哈喽</div>
</body>
</html>